Automatic control device for locomotive sand scattering

An automatic control device, a technology for locomotives, applied in the direction of locomotives, etc., can solve problems such as inability to effectively solve the problem of wheel idling, inability to provide sufficient friction force, and difficulty in achieving sand spreading results, and achieve easy implementation, improved stability and safety. , the effect of easy deployment

CN110816558AActive Publication Date: 2020-02-21HEBEI GAODA TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2020-02-21

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Abstract

The invention discloses an automatic control device for locomotive sand scattering, and belongs to the technical field of railway locomotives. The device comprises an electric control box and a sub-control box; an air pressure sensor and a sand scattering electric pneumatic valve are arranged in the sub-control box, and the sub-control box is provided with an air path inlet, an air path outlet anda circuit interface; and a DC converter, a control module and a sand scattering relay are arranged in the electric control box, the electric control box is provided with a power supply interface, a sensor connection interface, an electric pneumatic valve connection interface, a vehicle speed signal interface and a sand scattering signal interface, and the control module is used for executing an automatic control program. According to the device, the structure is simple, the design is ingenious, the implementation is easy, the improvement of the automation level of an existing locomotive sandscattering system is facilitated, and then the stability and safety of the locomotive operation are improved; and meanwhile, an existing locomotive can be conveniently transformed and upgraded by using the device, so that the device has extremely strong application prospect and economic benefit.
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Description

technical field

[0001] The invention relates to an automatic sand spreading control device for locomotives, which belongs to the technical field of railway locomotives. Background technique

[0002] When the locomotive is being towed, if the force of the driving wheel is greater than the adhesion force, the wheels will idling on the rail, causing the traction force of the locomotive to drop sharply or even disappear. In severe cases, the traction motor will fail.

[0003] The adhesion between locomotive wheelset and rail is affected by many factors. When the locomotive needs to increase the traction force when the traction train starts, accelerates, runs over slopes, etc., especially when it is running under the conditions of frost, snow, ice, water, oil, wheel tread out of round, rail damage, axle load transfer, etc. , Idling and skidding are prone to occur between the wheels and rails, and the traction force of the idling axle will drop sharply, which will affect the trac...

Examples

Embodiment Construction

[0032] In order to facilitate those skilled in the art to understand the technical solution of this patent, the technical solution of this patent will be further described in the form of specific cases below.

[0033] Such as figure 1 As shown, a locomotive sand spreading automatic control device includes an electric control box and a sub-control box, the sub-control box is provided with a wind pressure sensor and a sand-spraying electro-pneumatic valve, and the sub-control box has an air path inlet, The gas path outlet and the circuit interface, the sand spreading electropneumatic valve is connected between the gas path inlet and the gas path outlet, the wind pressure sensor is arranged between the gas path inlet and the sand spreading electropneumatic valve, the circuit interface It includes a sensor interface connected to the wind pressure sensor and an electropneumatic valve interface connected to the sand spreading electropneumatic valve, and the sand spreading electropne...